.page-enter-active,
.page-leave-active {
    transition: opacity 2s;
}

.page-enter,
.page-leave {
    opacity: 0;
}

.test-enter-active,
.test-leave-active {
    transition: all 2s;
    font-size: 12px;
}

.test-enter,
.test-leave-active {
    /* opacity: 0; */
    font-size: 40px;
}